Rollable Display Screen Structure with Guided Drive Mechanism

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Solution Overview

Problem

Conventional display screen structures formed by merging multiple monitors result in gaps that affect the integrity and cause visual fatigue, as the screens cannot be seamlessly integrated.

Innovation Solution

An extendable display screen structure where a flexible screen is wound around a rotating shaft, driven by a transversely movable component, allowing for extension and retraction, with guiding components and wings to ensure stable deployment and tension, eliminating wrinkles.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If multiple monitors are merged to form a larger screen structure, then the display area is increased, but gaps between monitors appear affecting integrity and causing visual fatigue

Engineering Contradiction:
Improvedisplay areaVSAvoidscreen integrity
Core Design Contradiction:
Area of stationary objectVSStability of the object's composition

Solution Approach 1:

The patent merges multiple flexible display screens into a single continuous flexible screen that can be extended or retracted as one unified structure, eliminating the gaps that occur when separate monitors are joined together. This creates an integral display surface without discontinuities.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent employs a flexible screen that can dynamically extend and retract along a rotating shaft, allowing the display to transition between extended and retracted states while maintaining screen integrity. The flexible nature enables smooth deployment without rigid connections or visible gaps.

Inventive Principle:
Principle #15Dynamics

2Area of stationary object

If a flexible screen is extended to form a large display, then the display area is increased, but the volume occupied increases reducing portability

Engineering Contradiction:
Improvedisplay areaVSAvoidvolume
Core Design Contradiction:
Area of stationary objectVSVolume of moving object

Solution Approach 1:

The patent implements a nested structure where the flexible screen is wound around a rotating shaft in a compact configuration. When retracted, the screen is nested within the shaft structure, minimizing volume. When extended, the screen unwinds to provide large display area, achieving space-efficient storage.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The patent transforms the display from a two-dimensional extended surface to a three-dimensional compact wound configuration around the rotating shaft. This dimensional transformation allows the screen to occupy minimal volume when not in use while providing large display area when extended.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Volume of moving object

If the flexible screen is wound around a rotating shaft for compact storage, then volume is reduced, but wrinkles may form affecting display quality

Engineering Contradiction:
ImprovevolumeVSAvoiddisplay quality
Core Design Contradiction:
Volume of moving objectVSManufacturing precision

Solution Approach 1:

The patent incorporates a tensioning mechanism that applies preliminary tension to the flexible screen during the winding process onto the rotating shaft. This pre-tensioning prevents wrinkles from forming during storage and ensures the screen remains smooth and wrinkle-free when extended for display.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent controls the tension parameter of the flexible screen throughout the winding and unwinding process. By maintaining appropriate tension levels, the screen is kept taut during storage to prevent wrinkles, and the tension is released smoothly during extension to maintain display quality without creasing.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP3712875B1Structure of extending-type display screen
Publication Date: 2023.09.13 JIANGSU KANGRUI NEW MATERIAL TECH CO LTD
  • EP3712875B1 patent drawingFigure 1
  • EP3712875B1 patent drawingFigure 2
  • EP3712875B1 patent drawingFigure 3

AI summary

A rollable display screen structure, wherein a hollow part is provided on at least one side of a main base and two guiding components are symmetrically provided in the main base along two sides of the hollow part; at least one driving component is provided in the main base, and the driving component is provided with a power source to drive the driving component to move along the guiding component; at least one side of a flexible screen is wound around an outer periphery of at least one rotating shaft, the rotating shaft is rotatably disposed on a side of the driving component and forms linkage, the driving component, in linkage with the rotating shaft, moves along the guiding component out of the main base, whereby the flexible screen can be gradually released from the outer periphery of the rotating shaft to be unrolled outwards, and on the contrary, the driving component, in linkage with the rotating shaft, gradually moves into the main base, whereby the rotating shaft rolls up the flexible screen.